| 911 | } |
| 912 | |
| 913 | static void json_next_string_token(json_parse_t *json, json_token_t *token) |
| 914 | { |
| 915 | char *escape2char = json->cfg->escape2char; |
| 916 | char ch; |
| 917 | |
| 918 | /* Caller must ensure a string is next */ |
| 919 | assert(*json->ptr == '"'); |
| 920 | |
| 921 | /* Skip " */ |
| 922 | json->ptr++; |
| 923 | |
| 924 | /* json->tmp is the temporary strbuf used to accumulate the |
| 925 | * decoded string value. |
| 926 | * json->tmp is sized to handle JSON containing only a string value. |
| 927 | */ |
| 928 | strbuf_reset(json->tmp); |
| 929 | |
| 930 | while ((ch = *json->ptr) != '"') { |
| 931 | if (!ch) { |
| 932 | /* Premature end of the string */ |
| 933 | json_set_token_error(token, json, "unexpected end of string"); |
| 934 | return; |
| 935 | } |
| 936 | |
| 937 | /* Handle escapes */ |
| 938 | if (ch == '\\') { |
| 939 | /* Fetch escape character */ |
| 940 | ch = *(json->ptr + 1); |
| 941 | |
| 942 | /* Translate escape code and append to tmp string */ |
| 943 | ch = escape2char[(unsigned char)ch]; |
| 944 | if (ch == 'u') { |
| 945 | if (json_append_unicode_escape(json) == 0) |
| 946 | continue; |
| 947 | |
| 948 | json_set_token_error(token, json, |
| 949 | "invalid unicode escape code"); |
| 950 | return; |
| 951 | } |
| 952 | if (!ch) { |
| 953 | json_set_token_error(token, json, "invalid escape code"); |
| 954 | return; |
| 955 | } |
| 956 | |
| 957 | /* Skip '\' */ |
| 958 | json->ptr++; |
| 959 | } |
| 960 | /* Append normal character or translated single character |
| 961 | * Unicode escapes are handled above */ |
| 962 | strbuf_append_char_unsafe(json->tmp, ch); |
| 963 | json->ptr++; |
| 964 | } |
| 965 | json->ptr++; /* Eat final quote (") */ |
| 966 | |
| 967 | strbuf_ensure_null(json->tmp); |
| 968 | |
| 969 | token->type = T_STRING; |
| 970 | token->value.string = strbuf_string(json->tmp, &token->string_len); |
no test coverage detected